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为了研究噪声对人体健康损害的非特异性指标,对某棉纺厂接触不同噪声强度但接触时间均较稳定的528名工人作了上班前后心血管、血液及植物神经方面某些指标的调查。调查对象分布在织布、细纱和摇纱车间;并以上班前半小时和下班后半小时内检查结果作自身对照分析。用经校正后ND_2型声级计测定噪声强度和频谱。调查结果:①织布车间噪声102(A)dB以高频为主,细
In order to study the non-specific indicators of the damage to human health caused by noise, 528 workers who were exposed to different noise intensities but had stable contact time in a cotton mill were investigated for cardiovascular, blood and autonomic indices before and after work. The objects of investigation were distributed in weaving, spinning and yarn workshop; and the results of half an hour before work and half an hour after get off work were compared and analyzed. The noise intensity and frequency spectrum were measured with a calibrated ND_2 sound level meter. Survey results: ① weaving workshop noise 102 (A) dB to high-frequency-based, fine